Home
Class 9
MATHS
A spinner was spun 1000 times and the fr...

A spinner was spun 1000 times and the frequency of outcomes was recorded as in given table:

Find (a) List the possible outcomes that you can see in the spinner (b) Compute the probability of each outcome. (c) Find the ratio of each outcome to the total number of times that the spinner spun (use the table)

Text Solution

Verified by Experts

The correct Answer is:
0.2, 0.185
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NCERT GUJARATI|Exercise EXERCISE - 14.1|8 Videos
  • PROBABILITY

    NCERT GUJARATI|Exercise TRY THESE|7 Videos
  • POLYNOMIALS AND FACTORISATION

    NCERT GUJARATI|Exercise TRY THESE|5 Videos
  • PROOFS IN MATHEMATICS

    NCERT GUJARATI|Exercise EXERCISE - 15.4|15 Videos

Similar Questions

Explore conceptually related problems

A coin is tossed 100 times and the following outcomes are recorded Head:45 times Tails:55 times from the experiment a) Compute the probability of each outcomes. b) Find the sum of probabilities of all outcomes.

A die is thrown 1000 times with the frequencies for the outcomes 1,2,3,4,5 and 6 as given in the following table : {:("Outcome" 1,2,3,4,5,6),("Frequency",179,150,157,149,175,190):} Find the probability getting each outcome.

If two identical coins are tossed simultaneously. Find (a) the possible outcomes, (b) the number of total outcomes, (c) the probability of getting two heads, (d) probability of getting atleast one head, (e) probability of getting no heads and (f) probability of getting only one head.

A die has six faces numbered from 1 to 6. It is rolled and the number on the top face is noted. When this is treated as a random trial. a) What are the possible outcomes ? b)Are they equally likely? Why? c) Find the probability of a composite number turning up on the top face.

If three coins are tossed simultaneously then write their outcomes. a) All possible outcomes b) Number of possible outcomes c) Find the probability of getting at least one head (getting one or more than one head) d) Find the Probability of getting at most two heads (getting Two or less than two heads) e) Find the Probability of getting no tails

6 balls marked as 1,2,3,4,5 and 6 are kept in a box. Two players A and B start to take out 1 ball at a time from the box one after another without replacing the ball till the game is over. The number marked on the ball is added each time to the previous sum to get the sum of numbers marked on the balls taken out. If this sum is even, then 1 point is given to the players. the first player to get 2 points is declared winner. at the start of the game, the sum is 0. if A starts to take out the ball, find the number of ways in which the game can be won.

A bag contains five green marbles, three blue marbles, two red marbles, and two yellow marbles. One marble is drawn out randomly. a) Are the four different colour outcomes equally likely? Explain. b) Find the probability of drawing each colour marble i.e. , P(green), P(blue), P(red) and P(yellow) c) Find the sum of their probabilities.

A point source is emitting 0.2 W of ultravio- let radiation at a wavelength of lambda = 2537 Å . This source is placed at a distance of 1.0 m from the cathode of a photoelectric cell. The cathode is made of potassium (Work function = 2.22 eV ) and has a surface area of 4 cm^(2) . (a) According to classical theory, what time of exposure to the radiation shall be required for a potassium atom to accumulate sufficient energy to eject a photoelectron. Assume that radius of each potassium atom is 2 Å and it absorbs all energy incident on it. (b) Photon flux is defined as number of light photons reaching the cathode in unit time. Calculate the photon flux. (c) Photo efficiency is defined as probability of a photon being successful in knocking out an electron from the metal surface. Calculate the saturation photocurrent in the cell assuming a photo efficiency of 0.1. (d) Find the cut – off potential difference for the cell.